#include<stdio.h>
void jiaohuan(int* x,int* y)
{
	int a=*x;
	*x=*y;
	*y=a;
}
int main()
{
	int x,y;
	scanf("%d %d",&x,&y);
	jiaohuan(&x,&y);
	printf("x=%d y=%d",x,y);
	return 0;
}
